Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
Extension: .yaml
Size: 5420 bytes
Lines: 238
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: configuration, schema, or hardware description
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 BayLibre, SAS
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/amlogic,meson-g12a-usb-ctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Amlogic Meson G12A DWC3 USB SoC Controller Glue

maintainers:
  - Neil Armstrong <neil.armstrong@linaro.org>

description: |
  The Amlogic G12A embeds a DWC3 USB IP Core configured for USB2 and USB3
  in host-only mode, and a DWC2 IP Core configured for USB2 peripheral mode
  only.

  A glue connects the DWC3 core to USB2 PHYs and optionally to an USB3 PHY.

  One of the USB2 PHYs can be re-routed in peripheral mode to a DWC2 USB IP.

  The DWC3 Glue controls the PHY routing and power, an interrupt line is
  connected to the Glue to serve as OTG ID change detection.

  The Amlogic A1 embeds a DWC3 USB IP Core configured for USB2 in
  host-only mode.

  The Amlogic GXL, GXM & AXG SoCs doesn't embed an USB3 PHY.

properties:
  compatible:
    enum:
      - amlogic,meson-gxl-usb-ctrl
      - amlogic,meson-gxm-usb-ctrl
      - amlogic,meson-axg-usb-ctrl
      - amlogic,meson-g12a-usb-ctrl
      - amlogic,meson-a1-usb-ctrl

  ranges: true

  "#address-cells":
    enum: [ 1, 2 ]

  "#size-cells":
    enum: [ 1, 2 ]

  clocks:
    minItems: 1
    maxItems: 3

  clock-names:
    minItems: 1
    maxItems: 3

  resets:
    minItems: 1

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  phy-names:
    minItems: 1
    maxItems: 3

  phys:
    minItems: 1
    maxItems: 3

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.